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Synthesis and Structure of Dimeric Chloro(cyclopentadienyl)bismuthenium Cations

✍ Scribed by Helmut Sitzmann; Gotthelf Wolmershäuser; Roland Boese; Dieter Bläser

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
131 KB
Volume
625
Category
Article
ISSN
0372-7874

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✦ Synopsis

A new modification of the cyclopentadienylbismuth dihalide [(C 5 HR 4 )BiCl(l-Cl)] 2 (1) (R = CHMe 2 ) has been characterized by X-ray diffraction. The coordination of the five-membered ring as well as the arrangement of the chloro bridges differ from those of the known modification. On reaction of 1 or its pentaalkylated derivative [(C 5 Me 2 R 3 -1,2,4)BiCl(l-Cl)] 2 (2) with AlCl 3 the bismuthenium salts 4) have been obtained. Both are centrosymmetric dimers without solvent coordination. Only for 4 a very weak interaction with the counterion could be detected.

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